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  1.    #1  
    http://blog.andrewng.com/archives/827

    In case anyone's interested, here's a comparison I ran across


    Just got Bluetooth tethering working with USBModem, pretty decent speed:

    Bluetooth:

    * Download Speed: 319 kbps (39.9 KB/sec transfer rate)
    * Upload Speed: 49 kbps (6.1 KB/sec transfer rate)

    USB:

    * Download Speed: 594 kbps (74.3 KB/sec transfer rate)
    * Upload Speed: 115 kbps (14.4 KB/sec transfer rate)

    EVDO over Bluetooth is slower but still gives pretty good speed, but using USB also charges the phone, my PowerBook is pretty big so carrying the extra USB cable isn’t a big deal. Now at least I can get online during my Caltrain rides…
  2. #2  
    Hmm... from my experience with the A900 and bluetooth tethering, you can change the maximum speed on the COM port to 921600ps (allowing maxmium connection speeds of 921.6KBps), theoretically allowing similar speeds between USB and bluetooth DUN. This was in Windows though, the guys PowerBook may be different.

    I found that once I incrased the default COM port speed, I was seeing the sames speeds between USB and bluetooth.
  3. noodle's Avatar
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    #3  
    How is this done in OSX? changing the com port speed that is...
    Assuming you mean other then the treo which only allows 115,200bps in the connection manager under bluetooth.
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    noodlelest wet noodler
  4. #4  
    I don't think it's a software limit. For the few times I've setup tethering, I usually try to max all the connection speeds. Bluetooth still won't yield speeds over 400kbs like USB does for me.

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